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From "Jonathan Hsieh (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-15695) Ambari support for bucket caching parameter - hbase.bucketcache.ioengine
Date Fri, 22 Apr 2016 20:40:13 GMT

     [ https://issues.apache.org/jira/browse/HBASE-15695?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jonathan Hsieh resolved HBASE-15695.
    Resolution: Invalid

closing since it was refiled as an ambari ticket.  See link.

> Ambari support for bucket caching parameter - hbase.bucketcache.ioengine
> ------------------------------------------------------------------------
>                 Key: HBASE-15695
>                 URL: https://issues.apache.org/jira/browse/HBASE-15695
>             Project: HBase
>          Issue Type: New Feature
>          Components: BucketCache
>            Reporter: Nitin Verma
>            Assignee: Nitin Verma
> In order to utilize SSD as a L2 (bucket) cache, we specify a file location to hbase.bucketcache.ioengine
> hbase.bucketcache.ioengine=file:<filepath>
> The directory location specified to the above parameter could be non-existent or non-accessible.

> Since ambari-agent runs with root permissions, the proposed change here is to read the
'hbase.bucketcache.ioengine' parameter from hbase configuration and see if it points to a
file location (by looking at file: prefix). 
> In case ioengine points to a file, ambari-agent should create the underlying directory
and assign appropriate permissions to hbase:hadoop user. 

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